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nfsdiskless.h revision 1.11 
      1 /*	$NetBSD: nfsdiskless.h,v 1.11 1997/05/27 23:37:43 gwr Exp $	*/
      2 
      3 /*
      4  * Copyright (c) 1991, 1993
      5  *	The Regents of the University of California.  All rights reserved.
      6  *
      7  * This code is derived from software contributed to Berkeley by
      8  * Rick Macklem at The University of Guelph.
      9  *
     10  * Redistribution and use in source and binary forms, with or without
     11  * modification, are permitted provided that the following conditions
     12  * are met:
     13  * 1. Redistributions of source code must retain the above copyright
     14  *    notice, this list of conditions and the following disclaimer.
     15  * 2. Redistributions in binary form must reproduce the above copyright
     16  *    notice, this list of conditions and the following disclaimer in the
     17  *    documentation and/or other materials provided with the distribution.
     18  * 3. All advertising materials mentioning features or use of this software
     19  *    must display the following acknowledgement:
     20  *	This product includes software developed by the University of
     21  *	California, Berkeley and its contributors.
     22  * 4. Neither the name of the University nor the names of its contributors
     23  *    may be used to endorse or promote products derived from this software
     24  *    without specific prior written permission.
     25  *
     26  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     27  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     28  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     29  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     30  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     31  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     32  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     33  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     34  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     35  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     36  * SUCH DAMAGE.
     37  *
     38  *	@(#)nfsdiskless.h	8.1 (Berkeley) 6/10/93
     39  */
     40 
     41 /*
     42  * Structure that must be initialized for a diskless nfs client.
     43  * This structure is used by nfs_mountroot() to set up the root and swap
     44  * vnodes plus do a partial ifconfig(8) and route(8) so that the critical
     45  * net interface can communicate with the server.
     46  * Whether or not the swap area is nfs mounted is determined
     47  * by the value in swdevt[0]. (equal to NODEV --> swap over nfs)
     48  * Currently only works for AF_INET protocols.
     49  * NB: All fields are stored in net byte order to avoid hassles with
     50  * client/server byte ordering differences.
     51  */
     52 struct nfs_dlmount {
     53 	struct nfs_args ndm_args;
     54 	struct sockaddr ndm_saddr;  		/* Address of file server */
     55 	char		ndm_host[MNAMELEN]; 	/* server:pathname */
     56 	u_char		ndm_fh[NFSX_V3FHMAX]; 	/* The file's file handle */
     57 };
     58 struct nfs_diskless {
     59 	struct sockaddr_in nd_boot; 	/* Address of boot server */
     60 	struct nfs_dlmount nd_root; 	/* Mount info for root */
     61 	struct nfs_dlmount nd_swap; 	/* Mount info for swap */
     62 };
     63 
     64 int nfs_boot_init __P((struct nfs_diskless *nd, struct proc *procp));
     65 int nfs_boot_getfh __P((struct nfs_dlmount *ndm));
     66 
     67